US4910235A - Polyester film for recording materials - Google Patents
Polyester film for recording materials Download PDFInfo
- Publication number
- US4910235A US4910235A US07/197,136 US19713688A US4910235A US 4910235 A US4910235 A US 4910235A US 19713688 A US19713688 A US 19713688A US 4910235 A US4910235 A US 4910235A
- Authority
- US
- United States
- Prior art keywords
- polyester film
- pigment
- less
- titanium dioxide
- pearlescent pigment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/02—Ingredients treated with inorganic substances
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
- G03C1/795—Photosensitive materials characterised by the base or auxiliary layers the base being of macromolecular substances
- G03C1/7954—Polyesters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
Definitions
- This invention relates to a polyester film having a white pearly tone suitable as a support of recording materials, such as photographic films and, particularly, reflective photographic materials.
- Japanese Patent Application (OPI) No. 114921/74 (the term "OPI” as used herein means "unexamined published Japanese patent application") which corresponds to British Patent No. 1436927 discloses a reflective photographic material comprising a light-sensitive layer provided on a styrene resin sheet containing a white pigment having an average particle size of 1.5 ⁇ m or less.
- Japanese Patent Application (OPI) No. 54428/77 (corresponding to British Patent Nos. 1563591 and 1563592) discloses a reflective photographic material using a polyester sheet containing barium sulfate having a specific particle size.
- Japanese Patent Application (OPI) No. 118746/86 (corresponding to European Patent No. 182253) discloses a reflective photographic material using a support containing surface-treated titanium dioxide having a specific particle size.
- a polyester film containing the white pigment may take on a new luster upon stretching due to voids formed in layers around the pigment, but such does not answer out purpose of obtaining a pearly luster.
- One object of this invention is to provide a polyester film having a pearly luster as well as a high degree of whiteness.
- Another object of this invention is to provide a polyester film having a sufficient opacifying property for use as a support of reflective recording materials.
- a further object of this invention is to provide a polyester film as a support of reflective recording materials which improves image sharpness to produce special image effects through a high degree of whiteness and a pearly luster.
- pearlescent pigments Unlike ordinary pigments causing light scattering or selective absorption of light, pearlescent pigments give a pearly luster through multiple reflection of incident light.
- the luster of the silvery scales of fish is a natural case of the pearly luster.
- Hitherto known pearlescent pigments include white lead and aluminum pigments.
- the most preferred pearlescent pigment in the present invention is a mica pigment whose surface is coated with titanium dioxide (hereinafter referred to as "titanium-coated mica"). This is because titanium itself has a high refractive index so that a sufficient pearly luster can be obtained with its small amount added to polyester and also because it can be used safely without a danger of dust explosion, etc. as is involved in the case of using aluminum pigments.
- Specific examples of the titaniumcoated mica which can be used in the present invention include a series of "Iriodin", a trade name of pearlescent pigments comprising natural mica and titanium oxide produced by Merck Co. Among them, No. 4584 is the most suitable in view of its small average particle size and excellent film-forming properties.
- Particles of the pearlescent pigment preferably have a tabular form, and specifically having a flat plane of from 10 to 10,000 ⁇ m 2 and a thickness of 800 ⁇ or less.
- the optical thickness (thickness x refractive index) of the pearlescent pigment particles is preferably 2,000 ⁇ or less, and more preferably 1,600 ⁇ or less. The higher the refractive index, the better.
- the white pigment which can be used in the present invention is not particularly limited and includes titanium dioxide, barium sulfate, and the like. From the standpoint of high refractive index, the most effective is titanium dioxide, whose crystal structure is not limited, including an anatase structure, a rutile structure, etc. When weather resistance is especially required, rutile-type titanium dioxide which is less likely to cause chalking is preferably selected. From the viewpoint of film-forming properties, such as stretchability and filtrability of a molten mixture, and surface gloss, titanium dioxide preferably has a particle size of 0.5 ⁇ m or less, and more preferably contains no coarse particles of 50 ⁇ m or greater. Since such coarse particles may be formed by agglomeration of primary particles, surface treatment of the pigment particles would be effective for prevention of agglomeration.
- polyester resin which can be used in the present invention suitably include thermoplastic polyesters (generally called aromatic polyesters), such as polyethylene terephthalate, polybutylene, terephthalate, etc. Mixtures of the aromatic polyesters with those composed of naphthalates, cyclohexane-1,4-dimethanol, etc. or copolyesters comprising the same may also be used.
- aromatic polyesters generally called aromatic polyesters
- aromatic polyesters such as polyethylene terephthalate, polybutylene, terephthalate, etc.
- copolyesters comprising the same may also be used.
- the amount of the mixture of the white pigment and pearlescent pigment to be added to a polyester should not exceed 20% by weight in order to ensure acceptable film-forming properties. Particularly, such an amount ensures resistance to breaking upon film stretching. In order to attain an opacifying effect required as support for reflective photographic materials, it is desirable to add at least 10% by weight of the pigment mixture. Further, the proportion of the pearlescent pigment in the pigment mixture is preferably 50% by weight or less from the standpoint of degree of pearlescent attained. If the proportion exceeds 50% by weight, not only does the resulting luster become unnatural but film-forming properties are seriously deteriorated.
- the manner of addition of the pigments is not particularly restricted.
- the pigments can be added at an arbitrary stage, such as during the polymerization reaction, or immediately before extrusion, etc.
- it is desirable that the pigments are dispersed under a forced shear force in a Banbury mixer, a twin-screw extruder, etc. to prepare a master batch.
- the polyester containing the pigment mixture can be formed into a film in a usual manner, as described in, for example, Orville J. Sweeting, The Science and Technology of Polymer Films, Chapter 14, pp. 587-633. Special film forming techniques, such as co-extrusion, can also be adopted.
- the pearlescent pigment particles are preferably aligned as parallel as possible to the film plane in order to form a layer structure. To this effect, it is effective to biaxially stretch the polyester film.
- a white pigment is often combined with a fluorescent brightening agent.
- a fluorescent brightening agent include "KSN” produced by Hoechst (Hostalux KS-N, a bisbenzoxazolylstilbene derivative) and "OB” produced by Eastman Chemical (Uvitex OB, 2,5-bis-(5'-tertiary-butylbenzoxazolyl(2))thiophene).
- the polyester film according to the present invention is suitable for use as a support for black-and-white or color reflective photographic materials. It is also applicable as substitution for a support of photographic papers described, e.g., in Japanese Patent Application (OPI) No. 177541/84.
- Other recording materials to which the polyester film of the invention is applicable as a support include a color developer sheet for a pressure-sensitive recording system as described in Japanese Patent Application (OPI) No. 179784/86, heat-sensitive recording paper as described in Japanese Patent Application (OPI) No. 190886/84 (corresponding to U.S. Pat. No. 4,650,740), an image-receiving sheet for an image recording system as described in Japanese Patent Application (OPI) No. 278849/86, and heat-sensitive transfer recording materials, ink jet recording materials, and the like.
- a master batch comprising 50% polyethylene terephthalate and 50% of anatase-type titanium dioxide having an average particle size of 0.3 ⁇ m and a master batch comprising 90% polyethylene terephthalate and 10% of Iriodin No. 4584 (a trade name of pearlescent pigment) were prepared.
- a biaxially stretched polyester film was prepared in the same manner as in Example 1, except for using ony a titanium dioxide master batch so as to have a final pigment content of 15%.
- Example 1 Each of the polyester films prepared in Example 1 and Comparative Example 1 was determined for gloss by means of a glossmeter ("VG-10" manufactured by Nippon Denshoku K.K.) at an angle of 60° and for percent transmission of total light rays by means of a Ulbricht sphere ("Haze meter HSDR Model” manufactured by Nippon Seimitsu Kogaku K.K.). Further, tensile strength of each film sample having a size of 10 mm (width) ⁇ 100 mm (length) was measured by means of a tensile tester ("Tensilon UTM-IIIL Model” manufactured by Toyo Baldwin Co., Ltd.) at a rate of pulling of 200 mm/min. A pearly luster of each sample was visually observed. The results of these measurements or evaluations are shown in Table 1 below.
- the polyester film according to the present invention has a pearly luster as well as high whiteness while being equal in tensile strength to the conventional polyester film.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
TABLE 1 ______________________________________ Percent Tensile Transmission of Strength Total Light Rays (Kg/mm.sup.2) Pearly Gloss (%) MD TD Luster ______________________________________ Example 1 66 10 16.5 16.5 observed Comparative 35 7 16.7 15.6 not Example 1 observed ______________________________________
Claims (8)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62125518A JPS63289030A (en) | 1987-05-22 | 1987-05-22 | Polyester film |
JP62-125518 | 1987-05-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
US4910235A true US4910235A (en) | 1990-03-20 |
Family
ID=14912133
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/197,136 Expired - Lifetime US4910235A (en) | 1987-05-22 | 1988-05-23 | Polyester film for recording materials |
Country Status (2)
Country | Link |
---|---|
US (1) | US4910235A (en) |
JP (1) | JPS63289030A (en) |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5034430A (en) * | 1988-09-09 | 1991-07-23 | Ciba-Geigy Corporation | Novel compositions containing molybdenum disulfide |
EP0600443A1 (en) * | 1992-11-30 | 1994-06-08 | Fuji Photo Film Co., Ltd. | Silver halide color photographic light-sensitive material and method for formingcolor images by using the same |
EP0602446A1 (en) * | 1992-11-30 | 1994-06-22 | Fuji Photo Film Co., Ltd. | Method for forming a color image |
US5376501A (en) * | 1993-04-27 | 1994-12-27 | Agfa-Gevaert, N.V. | Process for incorporation of a water-insoluble substance into a hydrophilic layer |
EP0630955A1 (en) * | 1993-06-25 | 1994-12-28 | Sumitomo Chemical Company, Limited | Liquid crystal polyester resin composition and lamp reflector |
WO1995010563A1 (en) * | 1993-10-14 | 1995-04-20 | Imperial Chemical Industries Plc | Polymeric film |
EP0717066A1 (en) * | 1994-12-16 | 1996-06-19 | Toray Industries, Inc. | Polyester film for use in a laminate with a metal plate |
EP1114733A1 (en) * | 1999-06-01 | 2001-07-11 | Teijin Limited | Polyester film for ink image receiving substrate and ink image receiving substrate |
US6441059B1 (en) | 1992-09-09 | 2002-08-27 | Merck Patent Gesellschaft Mit Beschrankter Haftung | Agricultural method and materials for screening solar radiation |
US6497986B1 (en) * | 2001-08-16 | 2002-12-24 | Eastman Kodak Company | Nacreous satin imaging element |
EP1284436A1 (en) * | 2001-08-16 | 2003-02-19 | Eastman Kodak Company | Imaging element with polymer nacreous layer |
EP1284435A1 (en) * | 2001-08-16 | 2003-02-19 | Eastman Kodak Company | Imaging element with nacreous pigment |
EP1286211A1 (en) * | 2001-08-16 | 2003-02-26 | Eastman Kodak Company | Nacreous imaging element containing a voided polymer layer |
EP1286212A1 (en) * | 2001-08-16 | 2003-02-26 | Eastman Kodak Company | Oriented polyolefin imaging element with nacreous pigment |
EP1288712A1 (en) * | 2001-08-16 | 2003-03-05 | Eastman Kodak Company | Oriented polyester imaging element with nacreous pigment |
US6544714B1 (en) * | 2001-08-16 | 2003-04-08 | Eastman Kodak Company | Nacreous photographic packaging materials |
US20040151900A1 (en) * | 2002-03-28 | 2004-08-05 | Tetsuo Yoshida | Biaxially oriented polyester film |
WO2004107041A1 (en) * | 2003-05-27 | 2004-12-09 | Fuji Photo Film B.V. | Imaging support containing interference pigments |
US20140066564A1 (en) * | 2012-09-06 | 2014-03-06 | Ticona Llc | Molded Articles Made From A Translucent Polymer Composition |
CN113682019A (en) * | 2021-08-31 | 2021-11-23 | 江苏双星彩塑新材料股份有限公司 | Pearlescent polyester film and preparation method thereof |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4134776A (en) * | 1977-12-27 | 1979-01-16 | The Mearl Corporation | Exterior grade titanium dioxide coated mica |
US4269916A (en) * | 1978-07-03 | 1981-05-26 | Polaroid Corporation | Photographic prints utilizing lamellar pigment materials |
US4753829A (en) * | 1986-11-19 | 1988-06-28 | Basf Corporation | Opalescent automotive paint compositions containing microtitanium dioxide pigment |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS564901B2 (en) * | 1973-08-17 | 1981-02-02 | ||
JPS61259246A (en) * | 1985-05-14 | 1986-11-17 | Fuji Photo Film Co Ltd | Base for photographic paper |
-
1987
- 1987-05-22 JP JP62125518A patent/JPS63289030A/en active Pending
-
1988
- 1988-05-23 US US07/197,136 patent/US4910235A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4134776A (en) * | 1977-12-27 | 1979-01-16 | The Mearl Corporation | Exterior grade titanium dioxide coated mica |
US4269916A (en) * | 1978-07-03 | 1981-05-26 | Polaroid Corporation | Photographic prints utilizing lamellar pigment materials |
US4753829A (en) * | 1986-11-19 | 1988-06-28 | Basf Corporation | Opalescent automotive paint compositions containing microtitanium dioxide pigment |
Cited By (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5034430A (en) * | 1988-09-09 | 1991-07-23 | Ciba-Geigy Corporation | Novel compositions containing molybdenum disulfide |
US6441059B1 (en) | 1992-09-09 | 2002-08-27 | Merck Patent Gesellschaft Mit Beschrankter Haftung | Agricultural method and materials for screening solar radiation |
EP0600443A1 (en) * | 1992-11-30 | 1994-06-08 | Fuji Photo Film Co., Ltd. | Silver halide color photographic light-sensitive material and method for formingcolor images by using the same |
EP0602446A1 (en) * | 1992-11-30 | 1994-06-22 | Fuji Photo Film Co., Ltd. | Method for forming a color image |
US5422232A (en) * | 1992-11-30 | 1995-06-06 | Fuji Photo Film Co., Ltd. | Silver halide color photographic light-sensitive material and method for forming color images by using the same |
US5376501A (en) * | 1993-04-27 | 1994-12-27 | Agfa-Gevaert, N.V. | Process for incorporation of a water-insoluble substance into a hydrophilic layer |
EP0630955A1 (en) * | 1993-06-25 | 1994-12-28 | Sumitomo Chemical Company, Limited | Liquid crystal polyester resin composition and lamp reflector |
WO1995010563A1 (en) * | 1993-10-14 | 1995-04-20 | Imperial Chemical Industries Plc | Polymeric film |
EP0717066A1 (en) * | 1994-12-16 | 1996-06-19 | Toray Industries, Inc. | Polyester film for use in a laminate with a metal plate |
EP1114733A1 (en) * | 1999-06-01 | 2001-07-11 | Teijin Limited | Polyester film for ink image receiving substrate and ink image receiving substrate |
US6896941B1 (en) | 1999-06-01 | 2005-05-24 | Teijin Limited | Polyester film for use as an ink image receiving base film and ink |
EP1114733A4 (en) * | 1999-06-01 | 2004-10-20 | Teijin Ltd | Polyester film for ink image receiving substrate and ink image receiving substrate |
EP1286212A1 (en) * | 2001-08-16 | 2003-02-26 | Eastman Kodak Company | Oriented polyolefin imaging element with nacreous pigment |
US6596451B2 (en) * | 2001-08-16 | 2003-07-22 | Eastman Kodak Company | Nacreous imaging element containing a voided polymer layer |
EP1284435A1 (en) * | 2001-08-16 | 2003-02-19 | Eastman Kodak Company | Imaging element with nacreous pigment |
EP1288712A1 (en) * | 2001-08-16 | 2003-03-05 | Eastman Kodak Company | Oriented polyester imaging element with nacreous pigment |
US6544713B2 (en) * | 2001-08-16 | 2003-04-08 | Eastman Kodak Company | Imaging element with polymer nacreous layer |
US6544714B1 (en) * | 2001-08-16 | 2003-04-08 | Eastman Kodak Company | Nacreous photographic packaging materials |
US6569593B2 (en) * | 2001-08-16 | 2003-05-27 | Eastman Kodak Company | Oriented polyester imaging element with nacreous pigment |
EP1286211A1 (en) * | 2001-08-16 | 2003-02-26 | Eastman Kodak Company | Nacreous imaging element containing a voided polymer layer |
US6599669B2 (en) * | 2001-08-16 | 2003-07-29 | Eastman Kodak Company | Imaging element with nacreous pigment |
US6497986B1 (en) * | 2001-08-16 | 2002-12-24 | Eastman Kodak Company | Nacreous satin imaging element |
EP1284436A1 (en) * | 2001-08-16 | 2003-02-19 | Eastman Kodak Company | Imaging element with polymer nacreous layer |
US20040151900A1 (en) * | 2002-03-28 | 2004-08-05 | Tetsuo Yoshida | Biaxially oriented polyester film |
WO2004107041A1 (en) * | 2003-05-27 | 2004-12-09 | Fuji Photo Film B.V. | Imaging support containing interference pigments |
US20060105150A1 (en) * | 2003-05-27 | 2006-05-18 | Fuji Photo Film B.V. | Imaging support containing interference pigments |
US20140066564A1 (en) * | 2012-09-06 | 2014-03-06 | Ticona Llc | Molded Articles Made From A Translucent Polymer Composition |
CN113682019A (en) * | 2021-08-31 | 2021-11-23 | 江苏双星彩塑新材料股份有限公司 | Pearlescent polyester film and preparation method thereof |
Also Published As
Publication number | Publication date |
---|---|
JPS63289030A (en) | 1988-11-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: FUJI PHOTO FILM CO., LTD., NO. 210, NAKANUMA, MINA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:SATAKE, SEIMI;SHINAGAWA, YUKIO;SHIBATA, TOSHIO;REEL/FRAME:004950/0889 Effective date: 19880823 Owner name: FUJI PHOTO FILM CO., LTD., NO. 210, NAKANUMA, MINA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SATAKE, SEIMI;SHINAGAWA, YUKIO;SHIBATA, TOSHIO;REEL/FRAME:004950/0889 Effective date: 19880823 |
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Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
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Owner name: FUJIFILM CORPORATION, JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FUJIFILM HOLDINGS CORPORATION (FORMERLY FUJI PHOTO FILM CO., LTD.);REEL/FRAME:020817/0190 Effective date: 20080225 Owner name: FUJIFILM CORPORATION,JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FUJIFILM HOLDINGS CORPORATION (FORMERLY FUJI PHOTO FILM CO., LTD.);REEL/FRAME:020817/0190 Effective date: 20080225 |